Melt the fat, let it cool down a little. Drain the mandarins. Carefully mix quark, eggs, semolina, sugar, vanilla sugar, pudding powder, baking powder, lemon peel and juice with the whisk of the hand mixer.
Add fat, stir in. Carefully fold in the mandarins. Pour the dough into a greased and coconut-rasped springform pan (26 cm Ø) and smooth it down. Bake in the preheated oven (electric cooker: 175 °C/ convection oven: not suitable/ gas: level 2) for 65-75 minutes.
Leave the cheesecake to cool slightly in the mould, then remove from the mould. Serve with whipped cream sprinkled with roasted coconut flakes.